Four O’Clock Seeds – Mirabilis Jalapa

Four O’Clock (Mirabilis Jalapa) is a classic garden favorite known for its vibrant and fragrant blossoms that open in the late afternoon and evening. These hardy, easy-to-grow plants thrive in warm climates and produce trumpet-shaped blooms in a variety of colors, adding charm and beauty to any garden. With minimal care requirements, Four O’Clock seeds are perfect for gardeners of all levels.

Specifications:

• Botanical Name: Mirabilis Jalapa

• Common Name (US): Four O’Clock

• Plant Type: Annual (can behave as a perennial in frost-free zones)

• Height: 18–36 inches

• Spread: 18–24 inches

• Bloom Time: Summer to Fall (June – October)

• Flower Colors: Shades of pink, red, yellow, and white (sometimes bi-colored)

• Light Requirements: Full Sun to Partial Shade

• Soil Requirements: Well-drained soil; moderately fertile

• Watering Needs: Moderate; drought-tolerant once established

• USDA Zones: 7–11 (Perennial in zones 9–11, grown as annual in cooler zones)

• Sowing Season:

  • Indoors: Start 6–8 weeks before the last frost

  • Outdoors: Direct sow after last frost in spring

• Germination Time: 7–14 days

• Planting Depth: 1/4 inch

• Spacing: 12–18 inches apart